1 files changed, 97 insertions, 0 deletions
diff --git a/scripts/smoke/sync.js b/scripts/smoke/sync.js
new file mode 100644
index 000000000..fbba9cc80
--- /dev/null
+++ b/scripts/smoke/sync.js
@@ -0,0 +1,97 @@
+/** @file Runs all smoke tests and may add extra smoke-test dependencies to `yarn.lock`. */
+
+// @ts-check
+
+import Zip from 'adm-zip';
+import rimraf from 'rimraf';
+import { execa } from 'execa';
+import { polyfill } from '@astropub/webapi';
+import { fileURLToPath } from 'node:url';
+import { promises as fs } from 'node:fs';
+
+polyfill(globalThis, { exclude: 'window document' });
+
+/* Configuration
+/* -------------------------------------------------------------------------- */
+
+/** URL directory containing this current script. */
+// const scriptDir = new URL('./', import.meta.url);
+
+/** URL directory containing the entire project. */
+const rootDir = new URL('../../', import.meta.url);
+
+/** URL directory containing the example subdirectories. */
+const exampleDir = new URL('examples/', rootDir);
+const smokeDir = new URL('smoke/', rootDir);
+
+/** URL directory containing the Astro package. */
+const astroDir = new URL('packages/astro/', rootDir);
+
+/** GitHub configuration for the external "docs" Astro project. */
+const docGithubConfig = { org: 'withastro', name: 'docs', branch: 'main' };
+
+/** GitHub configuration for the external "astro.build" Astro project. */
+const wwwGithubConfig = { org: 'withastro', name: 'astro.build', branch: 'main' };
+
+/* Application
+/* -------------------------------------------------------------------------- */
+
+/** Runs all smoke tests. */
+async function run() {
+	await downloadGithubZip(docGithubConfig);
+  await downloadGithubZip(wwwGithubConfig);
+	await execa('yarn', [], { cwd: fileURLToPath(rootDir), stdout: 'inherit', stderr: 'inherit' });
+}
+
+/* Functionality
+/* -------------------------------------------------------------------------- */
+
+/** Returns the URL to the ZIP of the given GitHub project. */
+const getGithubZipURL = (/** @type {GithubOpts} */ opts) => `https://github.com/${opts.org}/${opts.name}/archive/refs/heads/${opts.branch}.zip`;
+
+/** Returns the awaited ZIP Buffer from the given GitHub project. */
+const fetchGithubZip = (/** @type {GithubOpts} */ opts) =>
+	fetch(getGithubZipURL(opts))
+		.then((response) => response.arrayBuffer())
+		.then((arrayBuffer) => Buffer.from(arrayBuffer));
+
+/** Downloads a ZIP from the given GitHub project. */
+const downloadGithubZip = async (/** @type {GithubOpts} */ opts) => {
+	/** Expected directory when the zip is downloaded. */
+	const githubDir = new URL(`${opts.name}-${opts.branch}`, smokeDir);
+	/** Whether the expected directory is already available */
+  rimraf.sync(fileURLToPath(githubDir));
+  console.log('🤖', 'Downloading', `${opts.org}/${opts.name}#${opts.branch}`);
+  const buffer = await fetchGithubZip(opts);
+  console.log('🤖', 'Extracting', `${opts.org}/${opts.name}#${opts.branch}`);
+  new Zip(buffer).extractAllTo(fileURLToPath(smokeDir), true);
+  console.log('🤖', 'Preparing', `${opts.org}/${opts.name}#${opts.branch}`);
+  const astroPackage = await readDirectoryPackage(astroDir);
+  const githubPackage = await readDirectoryPackage(githubDir);
+  if ('astro' in Object(githubPackage.dependencies)) {
+    githubPackage.dependencies['astro'] = astroPackage.version;
+  }
+  if ('astro' in Object(githubPackage.devDependencies)) {
+    githubPackage.devDependencies['astro'] = astroPackage.version;
+  }
+  if ('astro' in Object(githubPackage.peerDependencies)) {
+    githubPackage.peerDependencies['astro'] = astroPackage.version;
+  }
+  await writeDirectoryPackage(githubDir, githubPackage);
+  rimraf.sync(fileURLToPath(new URL(`yarn.lock`, githubDir)));
+  rimraf.sync(fileURLToPath(new URL(`package-lock.json`, githubDir)));
+};
+
+/** Returns the parsed package.json of the given directory. */
+const readDirectoryPackage = async (/** @type {URL} */ dir) => JSON.parse(await fs.readFile(new URL('package.json', dir + '/'), 'utf-8'));
+
+/** Returns upon completion of writing a package.json to the given directory. */
+const writeDirectoryPackage = async (/** @type {URL} */ dir, /** @type {any} */ data) =>
+	await fs.writeFile(new URL('package.json', dir + '/'), JSON.stringify(data, null, '  ') + '\n');
+
+/* Execution
+/* -------------------------------------------------------------------------- */
+
+run();
+
+/** @typedef {{ org: string, name: string, branch: string }} GithubOpts */